This document is about the technical specifications of the ADAU1702 audio processor. The processor adopts 28/56 bit technology, 25MHz clock frequency, supports stereo ADC, 4-channel DAC, and has a dynamic range of 102dB and THD+N of -90dB.
The ADAU1702 is a stand-alone 28/56-bit audio DSP optimized for audio processing tasks such as equalization, crossover, and dynamics processing. It features a 28/56-bit, 25 MHz digital audio processor with a stereo ADC offering 102 dB dynamic range and a 4-channel DAC with 103 dB dynamic range. The device supports sampling rates up to 192 kHz and includes a SigmaStudio graphical tool for programming.
| Processor Bit Depth | 28/56-bit, 25 MHz |
|---|---|
| ADC Dynamic Range | 102 dB |
| ADC THD+N | -90 dB |
| DAC Dynamic Range | 103 dB |
| DAC THD+N | -90 dB |
| Sampling Rate | up to 192 kHz |
| Package Type | 48-lead LQFP |
| Digital Supply Voltage | 1.8 V |
| Analog Supply Voltage | 3.3 V |
| Operating Temperature | -0°C to +70°C |
The device supports sampling rates up to 192 kHz.
Yes, an on-board voltage regulator allows operation from a 3.3 V supply for the digital circuitry.
It is fully programmable using the SigmaStudio graphical tool.